mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
Merge commit 'cc14ee03a7b91c69343f8d60c9e089a1950eeadb'
* commit 'cc14ee03a7b91c69343f8d60c9e089a1950eeadb': lavc: split slice and frame threading functions into separate files Conflicts: libavcodec/Makefile libavcodec/pthread.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
commit
4eea41cba1
@ -801,9 +801,9 @@ OBJS-$(CONFIG_REMOVE_EXTRADATA_BSF) += remove_extradata_bsf.o
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OBJS-$(CONFIG_TEXT2MOVSUB_BSF) += movsub_bsf.o
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# thread libraries
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OBJS-$(HAVE_PTHREADS) += pthread.o
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OBJS-$(HAVE_W32THREADS) += pthread.o
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OBJS-$(HAVE_OS2THREADS) += pthread.o
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OBJS-$(HAVE_PTHREADS) += pthread.o pthread_slice.o pthread_frame.o
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OBJS-$(HAVE_W32THREADS) += pthread.o pthread_slice.o pthread_frame.o
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OBJS-$(HAVE_OS2THREADS) += pthread.o pthread_slice.o pthread_frame.o
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OBJS-$(CONFIG_FRAME_THREAD_ENCODER) += frame_thread_encoder.o
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1115
libavcodec/pthread.c
1115
libavcodec/pthread.c
File diff suppressed because it is too large
Load Diff
888
libavcodec/pthread_frame.c
Normal file
888
libavcodec/pthread_frame.c
Normal file
@ -0,0 +1,888 @@
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/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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||||
* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* Frame multithreading support functions
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* @see doc/multithreading.txt
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*/
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#include "config.h"
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#include <stdint.h>
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#if HAVE_PTHREADS
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#include <pthread.h>
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#elif HAVE_W32THREADS
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#include "compat/w32pthreads.h"
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#elif HAVE_OS2THREADS
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#include "compat/os2threads.h"
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#endif
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#include "avcodec.h"
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#include "internal.h"
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#include "pthread_internal.h"
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#include "thread.h"
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#include "libavutil/avassert.h"
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#include "libavutil/buffer.h"
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#include "libavutil/common.h"
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#include "libavutil/cpu.h"
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#include "libavutil/frame.h"
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#include "libavutil/log.h"
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#include "libavutil/mem.h"
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/**
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* Context used by codec threads and stored in their AVCodecContext thread_opaque.
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*/
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typedef struct PerThreadContext {
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struct FrameThreadContext *parent;
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pthread_t thread;
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int thread_init;
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pthread_cond_t input_cond; ///< Used to wait for a new packet from the main thread.
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pthread_cond_t progress_cond; ///< Used by child threads to wait for progress to change.
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pthread_cond_t output_cond; ///< Used by the main thread to wait for frames to finish.
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pthread_mutex_t mutex; ///< Mutex used to protect the contents of the PerThreadContext.
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pthread_mutex_t progress_mutex; ///< Mutex used to protect frame progress values and progress_cond.
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AVCodecContext *avctx; ///< Context used to decode packets passed to this thread.
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AVPacket avpkt; ///< Input packet (for decoding) or output (for encoding).
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uint8_t *buf; ///< backup storage for packet data when the input packet is not refcounted
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int allocated_buf_size; ///< Size allocated for buf
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AVFrame frame; ///< Output frame (for decoding) or input (for encoding).
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int got_frame; ///< The output of got_picture_ptr from the last avcodec_decode_video() call.
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int result; ///< The result of the last codec decode/encode() call.
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enum {
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STATE_INPUT_READY, ///< Set when the thread is awaiting a packet.
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STATE_SETTING_UP, ///< Set before the codec has called ff_thread_finish_setup().
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STATE_GET_BUFFER, /**<
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* Set when the codec calls get_buffer().
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* State is returned to STATE_SETTING_UP afterwards.
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*/
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STATE_GET_FORMAT, /**<
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* Set when the codec calls get_format().
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* State is returned to STATE_SETTING_UP afterwards.
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*/
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STATE_SETUP_FINISHED ///< Set after the codec has called ff_thread_finish_setup().
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} state;
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/**
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* Array of frames passed to ff_thread_release_buffer().
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* Frames are released after all threads referencing them are finished.
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*/
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AVFrame *released_buffers;
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int num_released_buffers;
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int released_buffers_allocated;
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AVFrame *requested_frame; ///< AVFrame the codec passed to get_buffer()
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int requested_flags; ///< flags passed to get_buffer() for requested_frame
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const enum AVPixelFormat *available_formats; ///< Format array for get_format()
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enum AVPixelFormat result_format; ///< get_format() result
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} PerThreadContext;
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/**
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* Context stored in the client AVCodecContext thread_opaque.
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*/
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typedef struct FrameThreadContext {
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PerThreadContext *threads; ///< The contexts for each thread.
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PerThreadContext *prev_thread; ///< The last thread submit_packet() was called on.
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pthread_mutex_t buffer_mutex; ///< Mutex used to protect get/release_buffer().
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int next_decoding; ///< The next context to submit a packet to.
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int next_finished; ///< The next context to return output from.
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int delaying; /**<
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* Set for the first N packets, where N is the number of threads.
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* While it is set, ff_thread_en/decode_frame won't return any results.
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*/
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int die; ///< Set when threads should exit.
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} FrameThreadContext;
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#define THREAD_SAFE_CALLBACKS(avctx) \
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((avctx)->thread_safe_callbacks || (!(avctx)->get_buffer && (avctx)->get_buffer2 == avcodec_default_get_buffer2))
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/**
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* Codec worker thread.
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*
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* Automatically calls ff_thread_finish_setup() if the codec does
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* not provide an update_thread_context method, or if the codec returns
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* before calling it.
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*/
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static attribute_align_arg void *frame_worker_thread(void *arg)
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{
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PerThreadContext *p = arg;
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FrameThreadContext *fctx = p->parent;
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AVCodecContext *avctx = p->avctx;
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const AVCodec *codec = avctx->codec;
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pthread_mutex_lock(&p->mutex);
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while (1) {
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while (p->state == STATE_INPUT_READY && !fctx->die)
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pthread_cond_wait(&p->input_cond, &p->mutex);
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if (fctx->die) break;
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if (!codec->update_thread_context && THREAD_SAFE_CALLBACKS(avctx))
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ff_thread_finish_setup(avctx);
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avcodec_get_frame_defaults(&p->frame);
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p->got_frame = 0;
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p->result = codec->decode(avctx, &p->frame, &p->got_frame, &p->avpkt);
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/* many decoders assign whole AVFrames, thus overwriting extended_data;
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* make sure it's set correctly */
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p->frame.extended_data = p->frame.data;
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if (p->state == STATE_SETTING_UP) ff_thread_finish_setup(avctx);
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pthread_mutex_lock(&p->progress_mutex);
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#if 0 //BUFREF-FIXME
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for (i = 0; i < MAX_BUFFERS; i++)
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if (p->progress_used[i] && (p->got_frame || p->result<0 || avctx->codec_id != AV_CODEC_ID_H264)) {
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p->progress[i][0] = INT_MAX;
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p->progress[i][1] = INT_MAX;
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}
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||||
#endif
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p->state = STATE_INPUT_READY;
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pthread_cond_broadcast(&p->progress_cond);
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pthread_cond_signal(&p->output_cond);
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pthread_mutex_unlock(&p->progress_mutex);
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}
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pthread_mutex_unlock(&p->mutex);
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return NULL;
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}
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||||
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||||
/**
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* Update the next thread's AVCodecContext with values from the reference thread's context.
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*
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* @param dst The destination context.
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* @param src The source context.
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* @param for_user 0 if the destination is a codec thread, 1 if the destination is the user's thread
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*/
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static int update_context_from_thread(AVCodecContext *dst, AVCodecContext *src, int for_user)
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{
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int err = 0;
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if (dst != src) {
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dst->time_base = src->time_base;
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dst->width = src->width;
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dst->height = src->height;
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dst->pix_fmt = src->pix_fmt;
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dst->coded_width = src->coded_width;
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dst->coded_height = src->coded_height;
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dst->has_b_frames = src->has_b_frames;
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dst->idct_algo = src->idct_algo;
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dst->bits_per_coded_sample = src->bits_per_coded_sample;
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dst->sample_aspect_ratio = src->sample_aspect_ratio;
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dst->dtg_active_format = src->dtg_active_format;
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dst->profile = src->profile;
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dst->level = src->level;
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dst->bits_per_raw_sample = src->bits_per_raw_sample;
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dst->ticks_per_frame = src->ticks_per_frame;
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dst->color_primaries = src->color_primaries;
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dst->color_trc = src->color_trc;
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dst->colorspace = src->colorspace;
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dst->color_range = src->color_range;
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dst->chroma_sample_location = src->chroma_sample_location;
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dst->hwaccel = src->hwaccel;
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dst->hwaccel_context = src->hwaccel_context;
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dst->channels = src->channels;
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dst->sample_rate = src->sample_rate;
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dst->sample_fmt = src->sample_fmt;
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dst->channel_layout = src->channel_layout;
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}
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if (for_user) {
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dst->delay = src->thread_count - 1;
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dst->coded_frame = src->coded_frame;
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} else {
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if (dst->codec->update_thread_context)
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err = dst->codec->update_thread_context(dst, src);
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}
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return err;
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}
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||||
/**
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* Update the next thread's AVCodecContext with values set by the user.
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*
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* @param dst The destination context.
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* @param src The source context.
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* @return 0 on success, negative error code on failure
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*/
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static int update_context_from_user(AVCodecContext *dst, AVCodecContext *src)
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{
|
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#define copy_fields(s, e) memcpy(&dst->s, &src->s, (char*)&dst->e - (char*)&dst->s);
|
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dst->flags = src->flags;
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dst->draw_horiz_band= src->draw_horiz_band;
|
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dst->get_buffer2 = src->get_buffer2;
|
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#if FF_API_GET_BUFFER
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FF_DISABLE_DEPRECATION_WARNINGS
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dst->get_buffer = src->get_buffer;
|
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dst->release_buffer = src->release_buffer;
|
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FF_ENABLE_DEPRECATION_WARNINGS
|
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#endif
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|
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dst->opaque = src->opaque;
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dst->debug = src->debug;
|
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dst->debug_mv = src->debug_mv;
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||||
|
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dst->slice_flags = src->slice_flags;
|
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dst->flags2 = src->flags2;
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|
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copy_fields(skip_loop_filter, subtitle_header);
|
||||
|
||||
dst->frame_number = src->frame_number;
|
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dst->reordered_opaque = src->reordered_opaque;
|
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dst->thread_safe_callbacks = src->thread_safe_callbacks;
|
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|
||||
if (src->slice_count && src->slice_offset) {
|
||||
if (dst->slice_count < src->slice_count) {
|
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int *tmp = av_realloc(dst->slice_offset, src->slice_count *
|
||||
sizeof(*dst->slice_offset));
|
||||
if (!tmp) {
|
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av_free(dst->slice_offset);
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
dst->slice_offset = tmp;
|
||||
}
|
||||
memcpy(dst->slice_offset, src->slice_offset,
|
||||
src->slice_count * sizeof(*dst->slice_offset));
|
||||
}
|
||||
dst->slice_count = src->slice_count;
|
||||
return 0;
|
||||
#undef copy_fields
|
||||
}
|
||||
|
||||
/// Releases the buffers that this decoding thread was the last user of.
|
||||
static void release_delayed_buffers(PerThreadContext *p)
|
||||
{
|
||||
FrameThreadContext *fctx = p->parent;
|
||||
|
||||
while (p->num_released_buffers > 0) {
|
||||
AVFrame *f;
|
||||
|
||||
pthread_mutex_lock(&fctx->buffer_mutex);
|
||||
|
||||
// fix extended data in case the caller screwed it up
|
||||
av_assert0(p->avctx->codec_type == AVMEDIA_TYPE_VIDEO ||
|
||||
p->avctx->codec_type == AVMEDIA_TYPE_AUDIO);
|
||||
f = &p->released_buffers[--p->num_released_buffers];
|
||||
f->extended_data = f->data;
|
||||
av_frame_unref(f);
|
||||
|
||||
pthread_mutex_unlock(&fctx->buffer_mutex);
|
||||
}
|
||||
}
|
||||
|
||||
static int submit_packet(PerThreadContext *p, AVPacket *avpkt)
|
||||
{
|
||||
FrameThreadContext *fctx = p->parent;
|
||||
PerThreadContext *prev_thread = fctx->prev_thread;
|
||||
const AVCodec *codec = p->avctx->codec;
|
||||
|
||||
if (!avpkt->size && !(codec->capabilities & CODEC_CAP_DELAY)) return 0;
|
||||
|
||||
pthread_mutex_lock(&p->mutex);
|
||||
|
||||
release_delayed_buffers(p);
|
||||
|
||||
if (prev_thread) {
|
||||
int err;
|
||||
if (prev_thread->state == STATE_SETTING_UP) {
|
||||
pthread_mutex_lock(&prev_thread->progress_mutex);
|
||||
while (prev_thread->state == STATE_SETTING_UP)
|
||||
pthread_cond_wait(&prev_thread->progress_cond, &prev_thread->progress_mutex);
|
||||
pthread_mutex_unlock(&prev_thread->progress_mutex);
|
||||
}
|
||||
|
||||
err = update_context_from_thread(p->avctx, prev_thread->avctx, 0);
|
||||
if (err) {
|
||||
pthread_mutex_unlock(&p->mutex);
|
||||
return err;
|
||||
}
|
||||
}
|
||||
|
||||
av_buffer_unref(&p->avpkt.buf);
|
||||
p->avpkt = *avpkt;
|
||||
if (avpkt->buf)
|
||||
p->avpkt.buf = av_buffer_ref(avpkt->buf);
|
||||
else {
|
||||
av_fast_malloc(&p->buf, &p->allocated_buf_size, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
|
||||
p->avpkt.data = p->buf;
|
||||
memcpy(p->buf, avpkt->data, avpkt->size);
|
||||
memset(p->buf + avpkt->size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
|
||||
}
|
||||
|
||||
p->state = STATE_SETTING_UP;
|
||||
pthread_cond_signal(&p->input_cond);
|
||||
pthread_mutex_unlock(&p->mutex);
|
||||
|
||||
/*
|
||||
* If the client doesn't have a thread-safe get_buffer(),
|
||||
* then decoding threads call back to the main thread,
|
||||
* and it calls back to the client here.
|
||||
*/
|
||||
|
||||
FF_DISABLE_DEPRECATION_WARNINGS
|
||||
if (!p->avctx->thread_safe_callbacks && (
|
||||
p->avctx->get_format != avcodec_default_get_format ||
|
||||
#if FF_API_GET_BUFFER
|
||||
p->avctx->get_buffer ||
|
||||
#endif
|
||||
p->avctx->get_buffer2 != avcodec_default_get_buffer2)) {
|
||||
FF_ENABLE_DEPRECATION_WARNINGS
|
||||
while (p->state != STATE_SETUP_FINISHED && p->state != STATE_INPUT_READY) {
|
||||
int call_done = 1;
|
||||
pthread_mutex_lock(&p->progress_mutex);
|
||||
while (p->state == STATE_SETTING_UP)
|
||||
pthread_cond_wait(&p->progress_cond, &p->progress_mutex);
|
||||
|
||||
switch (p->state) {
|
||||
case STATE_GET_BUFFER:
|
||||
p->result = ff_get_buffer(p->avctx, p->requested_frame, p->requested_flags);
|
||||
break;
|
||||
case STATE_GET_FORMAT:
|
||||
p->result_format = p->avctx->get_format(p->avctx, p->available_formats);
|
||||
break;
|
||||
default:
|
||||
call_done = 0;
|
||||
break;
|
||||
}
|
||||
if (call_done) {
|
||||
p->state = STATE_SETTING_UP;
|
||||
pthread_cond_signal(&p->progress_cond);
|
||||
}
|
||||
pthread_mutex_unlock(&p->progress_mutex);
|
||||
}
|
||||
}
|
||||
|
||||
fctx->prev_thread = p;
|
||||
fctx->next_decoding++;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int ff_thread_decode_frame(AVCodecContext *avctx,
|
||||
AVFrame *picture, int *got_picture_ptr,
|
||||
AVPacket *avpkt)
|
||||
{
|
||||
FrameThreadContext *fctx = avctx->thread_opaque;
|
||||
int finished = fctx->next_finished;
|
||||
PerThreadContext *p;
|
||||
int err;
|
||||
|
||||
/*
|
||||
* Submit a packet to the next decoding thread.
|
||||
*/
|
||||
|
||||
p = &fctx->threads[fctx->next_decoding];
|
||||
err = update_context_from_user(p->avctx, avctx);
|
||||
if (err) return err;
|
||||
err = submit_packet(p, avpkt);
|
||||
if (err) return err;
|
||||
|
||||
/*
|
||||
* If we're still receiving the initial packets, don't return a frame.
|
||||
*/
|
||||
|
||||
if (fctx->next_decoding > (avctx->thread_count-1-(avctx->codec_id == AV_CODEC_ID_FFV1)))
|
||||
fctx->delaying = 0;
|
||||
|
||||
if (fctx->delaying) {
|
||||
*got_picture_ptr=0;
|
||||
if (avpkt->size)
|
||||
return avpkt->size;
|
||||
}
|
||||
|
||||
/*
|
||||
* Return the next available frame from the oldest thread.
|
||||
* If we're at the end of the stream, then we have to skip threads that
|
||||
* didn't output a frame, because we don't want to accidentally signal
|
||||
* EOF (avpkt->size == 0 && *got_picture_ptr == 0).
|
||||
*/
|
||||
|
||||
do {
|
||||
p = &fctx->threads[finished++];
|
||||
|
||||
if (p->state != STATE_INPUT_READY) {
|
||||
pthread_mutex_lock(&p->progress_mutex);
|
||||
while (p->state != STATE_INPUT_READY)
|
||||
pthread_cond_wait(&p->output_cond, &p->progress_mutex);
|
||||
pthread_mutex_unlock(&p->progress_mutex);
|
||||
}
|
||||
|
||||
av_frame_move_ref(picture, &p->frame);
|
||||
*got_picture_ptr = p->got_frame;
|
||||
picture->pkt_dts = p->avpkt.dts;
|
||||
|
||||
/*
|
||||
* A later call with avkpt->size == 0 may loop over all threads,
|
||||
* including this one, searching for a frame to return before being
|
||||
* stopped by the "finished != fctx->next_finished" condition.
|
||||
* Make sure we don't mistakenly return the same frame again.
|
||||
*/
|
||||
p->got_frame = 0;
|
||||
|
||||
if (finished >= avctx->thread_count) finished = 0;
|
||||
} while (!avpkt->size && !*got_picture_ptr && finished != fctx->next_finished);
|
||||
|
||||
update_context_from_thread(avctx, p->avctx, 1);
|
||||
|
||||
if (fctx->next_decoding >= avctx->thread_count) fctx->next_decoding = 0;
|
||||
|
||||
fctx->next_finished = finished;
|
||||
|
||||
/* return the size of the consumed packet if no error occurred */
|
||||
return (p->result >= 0) ? avpkt->size : p->result;
|
||||
}
|
||||
|
||||
void ff_thread_report_progress(ThreadFrame *f, int n, int field)
|
||||
{
|
||||
PerThreadContext *p;
|
||||
volatile int *progress = f->progress ? (int*)f->progress->data : NULL;
|
||||
|
||||
if (!progress || progress[field] >= n) return;
|
||||
|
||||
p = f->owner->thread_opaque;
|
||||
|
||||
if (f->owner->debug&FF_DEBUG_THREADS)
|
||||
av_log(f->owner, AV_LOG_DEBUG, "%p finished %d field %d\n", progress, n, field);
|
||||
|
||||
pthread_mutex_lock(&p->progress_mutex);
|
||||
progress[field] = n;
|
||||
pthread_cond_broadcast(&p->progress_cond);
|
||||
pthread_mutex_unlock(&p->progress_mutex);
|
||||
}
|
||||
|
||||
void ff_thread_await_progress(ThreadFrame *f, int n, int field)
|
||||
{
|
||||
PerThreadContext *p;
|
||||
volatile int *progress = f->progress ? (int*)f->progress->data : NULL;
|
||||
|
||||
if (!progress || progress[field] >= n) return;
|
||||
|
||||
p = f->owner->thread_opaque;
|
||||
|
||||
if (f->owner->debug&FF_DEBUG_THREADS)
|
||||
av_log(f->owner, AV_LOG_DEBUG, "thread awaiting %d field %d from %p\n", n, field, progress);
|
||||
|
||||
pthread_mutex_lock(&p->progress_mutex);
|
||||
while (progress[field] < n)
|
||||
pthread_cond_wait(&p->progress_cond, &p->progress_mutex);
|
||||
pthread_mutex_unlock(&p->progress_mutex);
|
||||
}
|
||||
|
||||
void ff_thread_finish_setup(AVCodecContext *avctx) {
|
||||
PerThreadContext *p = avctx->thread_opaque;
|
||||
|
||||
if (!(avctx->active_thread_type&FF_THREAD_FRAME)) return;
|
||||
|
||||
if(p->state == STATE_SETUP_FINISHED){
|
||||
av_log(avctx, AV_LOG_WARNING, "Multiple ff_thread_finish_setup() calls\n");
|
||||
}
|
||||
|
||||
pthread_mutex_lock(&p->progress_mutex);
|
||||
p->state = STATE_SETUP_FINISHED;
|
||||
pthread_cond_broadcast(&p->progress_cond);
|
||||
pthread_mutex_unlock(&p->progress_mutex);
|
||||
}
|
||||
|
||||
/// Waits for all threads to finish.
|
||||
static void park_frame_worker_threads(FrameThreadContext *fctx, int thread_count)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < thread_count; i++) {
|
||||
PerThreadContext *p = &fctx->threads[i];
|
||||
|
||||
if (p->state != STATE_INPUT_READY) {
|
||||
pthread_mutex_lock(&p->progress_mutex);
|
||||
while (p->state != STATE_INPUT_READY)
|
||||
pthread_cond_wait(&p->output_cond, &p->progress_mutex);
|
||||
pthread_mutex_unlock(&p->progress_mutex);
|
||||
}
|
||||
p->got_frame = 0;
|
||||
}
|
||||
}
|
||||
|
||||
void ff_frame_thread_free(AVCodecContext *avctx, int thread_count)
|
||||
{
|
||||
FrameThreadContext *fctx = avctx->thread_opaque;
|
||||
const AVCodec *codec = avctx->codec;
|
||||
int i;
|
||||
|
||||
park_frame_worker_threads(fctx, thread_count);
|
||||
|
||||
if (fctx->prev_thread && fctx->prev_thread != fctx->threads)
|
||||
if (update_context_from_thread(fctx->threads->avctx, fctx->prev_thread->avctx, 0) < 0) {
|
||||
av_log(avctx, AV_LOG_ERROR, "Final thread update failed\n");
|
||||
fctx->prev_thread->avctx->internal->is_copy = fctx->threads->avctx->internal->is_copy;
|
||||
fctx->threads->avctx->internal->is_copy = 1;
|
||||
}
|
||||
|
||||
fctx->die = 1;
|
||||
|
||||
for (i = 0; i < thread_count; i++) {
|
||||
PerThreadContext *p = &fctx->threads[i];
|
||||
|
||||
pthread_mutex_lock(&p->mutex);
|
||||
pthread_cond_signal(&p->input_cond);
|
||||
pthread_mutex_unlock(&p->mutex);
|
||||
|
||||
if (p->thread_init)
|
||||
pthread_join(p->thread, NULL);
|
||||
p->thread_init=0;
|
||||
|
||||
if (codec->close)
|
||||
codec->close(p->avctx);
|
||||
|
||||
avctx->codec = NULL;
|
||||
|
||||
release_delayed_buffers(p);
|
||||
av_frame_unref(&p->frame);
|
||||
}
|
||||
|
||||
for (i = 0; i < thread_count; i++) {
|
||||
PerThreadContext *p = &fctx->threads[i];
|
||||
|
||||
pthread_mutex_destroy(&p->mutex);
|
||||
pthread_mutex_destroy(&p->progress_mutex);
|
||||
pthread_cond_destroy(&p->input_cond);
|
||||
pthread_cond_destroy(&p->progress_cond);
|
||||
pthread_cond_destroy(&p->output_cond);
|
||||
av_buffer_unref(&p->avpkt.buf);
|
||||
av_freep(&p->buf);
|
||||
av_freep(&p->released_buffers);
|
||||
|
||||
if (i) {
|
||||
av_freep(&p->avctx->priv_data);
|
||||
av_freep(&p->avctx->internal);
|
||||
av_freep(&p->avctx->slice_offset);
|
||||
}
|
||||
|
||||
av_freep(&p->avctx);
|
||||
}
|
||||
|
||||
av_freep(&fctx->threads);
|
||||
pthread_mutex_destroy(&fctx->buffer_mutex);
|
||||
av_freep(&avctx->thread_opaque);
|
||||
}
|
||||
|
||||
int ff_frame_thread_init(AVCodecContext *avctx)
|
||||
{
|
||||
int thread_count = avctx->thread_count;
|
||||
const AVCodec *codec = avctx->codec;
|
||||
AVCodecContext *src = avctx;
|
||||
FrameThreadContext *fctx;
|
||||
int i, err = 0;
|
||||
|
||||
#if HAVE_W32THREADS
|
||||
w32thread_init();
|
||||
#endif
|
||||
|
||||
if (!thread_count) {
|
||||
int nb_cpus = av_cpu_count();
|
||||
if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) || avctx->debug_mv)
|
||||
nb_cpus = 1;
|
||||
// use number of cores + 1 as thread count if there is more than one
|
||||
if (nb_cpus > 1)
|
||||
thread_count = avctx->thread_count = FFMIN(nb_cpus + 1, MAX_AUTO_THREADS);
|
||||
else
|
||||
thread_count = avctx->thread_count = 1;
|
||||
}
|
||||
|
||||
if (thread_count <= 1) {
|
||||
avctx->active_thread_type = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
avctx->thread_opaque = fctx = av_mallocz(sizeof(FrameThreadContext));
|
||||
|
||||
fctx->threads = av_mallocz(sizeof(PerThreadContext) * thread_count);
|
||||
pthread_mutex_init(&fctx->buffer_mutex, NULL);
|
||||
fctx->delaying = 1;
|
||||
|
||||
for (i = 0; i < thread_count; i++) {
|
||||
AVCodecContext *copy = av_malloc(sizeof(AVCodecContext));
|
||||
PerThreadContext *p = &fctx->threads[i];
|
||||
|
||||
pthread_mutex_init(&p->mutex, NULL);
|
||||
pthread_mutex_init(&p->progress_mutex, NULL);
|
||||
pthread_cond_init(&p->input_cond, NULL);
|
||||
pthread_cond_init(&p->progress_cond, NULL);
|
||||
pthread_cond_init(&p->output_cond, NULL);
|
||||
|
||||
p->parent = fctx;
|
||||
p->avctx = copy;
|
||||
|
||||
if (!copy) {
|
||||
err = AVERROR(ENOMEM);
|
||||
goto error;
|
||||
}
|
||||
|
||||
*copy = *src;
|
||||
copy->thread_opaque = p;
|
||||
copy->pkt = &p->avpkt;
|
||||
|
||||
if (!i) {
|
||||
src = copy;
|
||||
|
||||
if (codec->init)
|
||||
err = codec->init(copy);
|
||||
|
||||
update_context_from_thread(avctx, copy, 1);
|
||||
} else {
|
||||
copy->priv_data = av_malloc(codec->priv_data_size);
|
||||
if (!copy->priv_data) {
|
||||
err = AVERROR(ENOMEM);
|
||||
goto error;
|
||||
}
|
||||
memcpy(copy->priv_data, src->priv_data, codec->priv_data_size);
|
||||
copy->internal = av_malloc(sizeof(AVCodecInternal));
|
||||
if (!copy->internal) {
|
||||
err = AVERROR(ENOMEM);
|
||||
goto error;
|
||||
}
|
||||
*copy->internal = *src->internal;
|
||||
copy->internal->is_copy = 1;
|
||||
|
||||
if (codec->init_thread_copy)
|
||||
err = codec->init_thread_copy(copy);
|
||||
}
|
||||
|
||||
if (err) goto error;
|
||||
|
||||
err = AVERROR(pthread_create(&p->thread, NULL, frame_worker_thread, p));
|
||||
p->thread_init= !err;
|
||||
if(!p->thread_init)
|
||||
goto error;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
error:
|
||||
ff_frame_thread_free(avctx, i+1);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
void ff_thread_flush(AVCodecContext *avctx)
|
||||
{
|
||||
int i;
|
||||
FrameThreadContext *fctx = avctx->thread_opaque;
|
||||
|
||||
if (!avctx->thread_opaque) return;
|
||||
|
||||
park_frame_worker_threads(fctx, avctx->thread_count);
|
||||
if (fctx->prev_thread) {
|
||||
if (fctx->prev_thread != &fctx->threads[0])
|
||||
update_context_from_thread(fctx->threads[0].avctx, fctx->prev_thread->avctx, 0);
|
||||
if (avctx->codec->flush)
|
||||
avctx->codec->flush(fctx->threads[0].avctx);
|
||||
}
|
||||
|
||||
fctx->next_decoding = fctx->next_finished = 0;
|
||||
fctx->delaying = 1;
|
||||
fctx->prev_thread = NULL;
|
||||
for (i = 0; i < avctx->thread_count; i++) {
|
||||
PerThreadContext *p = &fctx->threads[i];
|
||||
// Make sure decode flush calls with size=0 won't return old frames
|
||||
p->got_frame = 0;
|
||||
av_frame_unref(&p->frame);
|
||||
|
||||
release_delayed_buffers(p);
|
||||
}
|
||||
}
|
||||
|
||||
int ff_thread_can_start_frame(AVCodecContext *avctx)
|
||||
{
|
||||
PerThreadContext *p = avctx->thread_opaque;
|
||||
if ((avctx->active_thread_type&FF_THREAD_FRAME) && p->state != STATE_SETTING_UP &&
|
||||
(avctx->codec->update_thread_context || !THREAD_SAFE_CALLBACKS(avctx))) {
|
||||
return 0;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int thread_get_buffer_internal(AVCodecContext *avctx, ThreadFrame *f, int flags)
|
||||
{
|
||||
PerThreadContext *p = avctx->thread_opaque;
|
||||
int err;
|
||||
|
||||
f->owner = avctx;
|
||||
|
||||
ff_init_buffer_info(avctx, f->f);
|
||||
|
||||
if (!(avctx->active_thread_type & FF_THREAD_FRAME))
|
||||
return ff_get_buffer(avctx, f->f, flags);
|
||||
|
||||
if (p->state != STATE_SETTING_UP &&
|
||||
(avctx->codec->update_thread_context || !THREAD_SAFE_CALLBACKS(avctx))) {
|
||||
av_log(avctx, AV_LOG_ERROR, "get_buffer() cannot be called after ff_thread_finish_setup()\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (avctx->internal->allocate_progress) {
|
||||
int *progress;
|
||||
f->progress = av_buffer_alloc(2 * sizeof(int));
|
||||
if (!f->progress) {
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
progress = (int*)f->progress->data;
|
||||
|
||||
progress[0] = progress[1] = -1;
|
||||
}
|
||||
|
||||
pthread_mutex_lock(&p->parent->buffer_mutex);
|
||||
FF_DISABLE_DEPRECATION_WARNINGS
|
||||
if (avctx->thread_safe_callbacks || (
|
||||
#if FF_API_GET_BUFFER
|
||||
!avctx->get_buffer &&
|
||||
#endif
|
||||
avctx->get_buffer2 == avcodec_default_get_buffer2)) {
|
||||
FF_ENABLE_DEPRECATION_WARNINGS
|
||||
err = ff_get_buffer(avctx, f->f, flags);
|
||||
} else {
|
||||
pthread_mutex_lock(&p->progress_mutex);
|
||||
p->requested_frame = f->f;
|
||||
p->requested_flags = flags;
|
||||
p->state = STATE_GET_BUFFER;
|
||||
pthread_cond_broadcast(&p->progress_cond);
|
||||
|
||||
while (p->state != STATE_SETTING_UP)
|
||||
pthread_cond_wait(&p->progress_cond, &p->progress_mutex);
|
||||
|
||||
err = p->result;
|
||||
|
||||
pthread_mutex_unlock(&p->progress_mutex);
|
||||
|
||||
}
|
||||
if (!THREAD_SAFE_CALLBACKS(avctx) && !avctx->codec->update_thread_context)
|
||||
ff_thread_finish_setup(avctx);
|
||||
|
||||
if (err)
|
||||
av_buffer_unref(&f->progress);
|
||||
|
||||
pthread_mutex_unlock(&p->parent->buffer_mutex);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
|
||||
{
|
||||
enum AVPixelFormat res;
|
||||
PerThreadContext *p = avctx->thread_opaque;
|
||||
if (!(avctx->active_thread_type & FF_THREAD_FRAME) || avctx->thread_safe_callbacks ||
|
||||
avctx->get_format == avcodec_default_get_format)
|
||||
return avctx->get_format(avctx, fmt);
|
||||
if (p->state != STATE_SETTING_UP) {
|
||||
av_log(avctx, AV_LOG_ERROR, "get_format() cannot be called after ff_thread_finish_setup()\n");
|
||||
return -1;
|
||||
}
|
||||
pthread_mutex_lock(&p->progress_mutex);
|
||||
p->available_formats = fmt;
|
||||
p->state = STATE_GET_FORMAT;
|
||||
pthread_cond_broadcast(&p->progress_cond);
|
||||
|
||||
while (p->state != STATE_SETTING_UP)
|
||||
pthread_cond_wait(&p->progress_cond, &p->progress_mutex);
|
||||
|
||||
res = p->result_format;
|
||||
|
||||
pthread_mutex_unlock(&p->progress_mutex);
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
|
||||
{
|
||||
int ret = thread_get_buffer_internal(avctx, f, flags);
|
||||
if (ret < 0)
|
||||
av_log(avctx, AV_LOG_ERROR, "thread_get_buffer() failed\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
|
||||
{
|
||||
PerThreadContext *p = avctx->thread_opaque;
|
||||
FrameThreadContext *fctx;
|
||||
AVFrame *dst, *tmp;
|
||||
FF_DISABLE_DEPRECATION_WARNINGS
|
||||
int can_direct_free = !(avctx->active_thread_type & FF_THREAD_FRAME) ||
|
||||
avctx->thread_safe_callbacks ||
|
||||
(
|
||||
#if FF_API_GET_BUFFER
|
||||
!avctx->get_buffer &&
|
||||
#endif
|
||||
avctx->get_buffer2 == avcodec_default_get_buffer2);
|
||||
FF_ENABLE_DEPRECATION_WARNINGS
|
||||
|
||||
if (!f->f->data[0])
|
||||
return;
|
||||
|
||||
if (avctx->debug & FF_DEBUG_BUFFERS)
|
||||
av_log(avctx, AV_LOG_DEBUG, "thread_release_buffer called on pic %p\n", f);
|
||||
|
||||
av_buffer_unref(&f->progress);
|
||||
f->owner = NULL;
|
||||
|
||||
if (can_direct_free) {
|
||||
av_frame_unref(f->f);
|
||||
return;
|
||||
}
|
||||
|
||||
fctx = p->parent;
|
||||
pthread_mutex_lock(&fctx->buffer_mutex);
|
||||
|
||||
if (p->num_released_buffers + 1 >= INT_MAX / sizeof(*p->released_buffers))
|
||||
goto fail;
|
||||
tmp = av_fast_realloc(p->released_buffers, &p->released_buffers_allocated,
|
||||
(p->num_released_buffers + 1) *
|
||||
sizeof(*p->released_buffers));
|
||||
if (!tmp)
|
||||
goto fail;
|
||||
p->released_buffers = tmp;
|
||||
|
||||
dst = &p->released_buffers[p->num_released_buffers];
|
||||
av_frame_move_ref(dst, f->f);
|
||||
|
||||
p->num_released_buffers++;
|
||||
|
||||
fail:
|
||||
pthread_mutex_unlock(&fctx->buffer_mutex);
|
||||
}
|
||||
34
libavcodec/pthread_internal.h
Normal file
34
libavcodec/pthread_internal.h
Normal file
@ -0,0 +1,34 @@
|
||||
/*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef AVCODEC_PTHREAD_INTERNAL_H
|
||||
#define AVCODEC_PTHREAD_INTERNAL_H
|
||||
|
||||
#include "avcodec.h"
|
||||
|
||||
/* H264 slice threading seems to be buggy with more than 16 threads,
|
||||
* limit the number of threads to 16 for automatic detection */
|
||||
#define MAX_AUTO_THREADS 16
|
||||
|
||||
int ff_slice_thread_init(AVCodecContext *avctx);
|
||||
void ff_slice_thread_free(AVCodecContext *avctx);
|
||||
|
||||
int ff_frame_thread_init(AVCodecContext *avctx);
|
||||
void ff_frame_thread_free(AVCodecContext *avctx, int thread_count);
|
||||
|
||||
#endif // AVCODEC_PTHREAD_INTERNAL_H
|
||||
292
libavcodec/pthread_slice.c
Normal file
292
libavcodec/pthread_slice.c
Normal file
@ -0,0 +1,292 @@
|
||||
/*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* Slice multithreading support functions
|
||||
* @see doc/multithreading.txt
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#if HAVE_PTHREADS
|
||||
#include <pthread.h>
|
||||
#elif HAVE_W32THREADS
|
||||
#include "compat/w32pthreads.h"
|
||||
#elif HAVE_OS2THREADS
|
||||
#include "compat/os2threads.h"
|
||||
#endif
|
||||
|
||||
#include "avcodec.h"
|
||||
#include "internal.h"
|
||||
#include "pthread_internal.h"
|
||||
#include "thread.h"
|
||||
|
||||
#include "libavutil/common.h"
|
||||
#include "libavutil/cpu.h"
|
||||
#include "libavutil/mem.h"
|
||||
|
||||
typedef int (action_func)(AVCodecContext *c, void *arg);
|
||||
typedef int (action_func2)(AVCodecContext *c, void *arg, int jobnr, int threadnr);
|
||||
|
||||
typedef struct ThreadContext {
|
||||
pthread_t *workers;
|
||||
action_func *func;
|
||||
action_func2 *func2;
|
||||
void *args;
|
||||
int *rets;
|
||||
int rets_count;
|
||||
int job_count;
|
||||
int job_size;
|
||||
|
||||
pthread_cond_t last_job_cond;
|
||||
pthread_cond_t current_job_cond;
|
||||
pthread_mutex_t current_job_lock;
|
||||
unsigned current_execute;
|
||||
int current_job;
|
||||
int done;
|
||||
|
||||
int *entries;
|
||||
int entries_count;
|
||||
int thread_count;
|
||||
pthread_cond_t *progress_cond;
|
||||
pthread_mutex_t *progress_mutex;
|
||||
} ThreadContext;
|
||||
|
||||
static void* attribute_align_arg worker(void *v)
|
||||
{
|
||||
AVCodecContext *avctx = v;
|
||||
ThreadContext *c = avctx->thread_opaque;
|
||||
unsigned last_execute = 0;
|
||||
int our_job = c->job_count;
|
||||
int thread_count = avctx->thread_count;
|
||||
int self_id;
|
||||
|
||||
pthread_mutex_lock(&c->current_job_lock);
|
||||
self_id = c->current_job++;
|
||||
for (;;){
|
||||
while (our_job >= c->job_count) {
|
||||
if (c->current_job == thread_count + c->job_count)
|
||||
pthread_cond_signal(&c->last_job_cond);
|
||||
|
||||
while (last_execute == c->current_execute && !c->done)
|
||||
pthread_cond_wait(&c->current_job_cond, &c->current_job_lock);
|
||||
last_execute = c->current_execute;
|
||||
our_job = self_id;
|
||||
|
||||
if (c->done) {
|
||||
pthread_mutex_unlock(&c->current_job_lock);
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
pthread_mutex_unlock(&c->current_job_lock);
|
||||
|
||||
c->rets[our_job%c->rets_count] = c->func ? c->func(avctx, (char*)c->args + our_job*c->job_size):
|
||||
c->func2(avctx, c->args, our_job, self_id);
|
||||
|
||||
pthread_mutex_lock(&c->current_job_lock);
|
||||
our_job = c->current_job++;
|
||||
}
|
||||
}
|
||||
|
||||
void ff_slice_thread_free(AVCodecContext *avctx)
|
||||
{
|
||||
ThreadContext *c = avctx->thread_opaque;
|
||||
int i;
|
||||
|
||||
pthread_mutex_lock(&c->current_job_lock);
|
||||
c->done = 1;
|
||||
pthread_cond_broadcast(&c->current_job_cond);
|
||||
pthread_mutex_unlock(&c->current_job_lock);
|
||||
|
||||
for (i=0; i<avctx->thread_count; i++)
|
||||
pthread_join(c->workers[i], NULL);
|
||||
|
||||
pthread_mutex_destroy(&c->current_job_lock);
|
||||
pthread_cond_destroy(&c->current_job_cond);
|
||||
pthread_cond_destroy(&c->last_job_cond);
|
||||
av_free(c->workers);
|
||||
av_freep(&avctx->thread_opaque);
|
||||
}
|
||||
|
||||
static av_always_inline void thread_park_workers(ThreadContext *c, int thread_count)
|
||||
{
|
||||
while (c->current_job != thread_count + c->job_count)
|
||||
pthread_cond_wait(&c->last_job_cond, &c->current_job_lock);
|
||||
pthread_mutex_unlock(&c->current_job_lock);
|
||||
}
|
||||
|
||||
static int thread_execute(AVCodecContext *avctx, action_func* func, void *arg, int *ret, int job_count, int job_size)
|
||||
{
|
||||
ThreadContext *c= avctx->thread_opaque;
|
||||
int dummy_ret;
|
||||
|
||||
if (!(avctx->active_thread_type&FF_THREAD_SLICE) || avctx->thread_count <= 1)
|
||||
return avcodec_default_execute(avctx, func, arg, ret, job_count, job_size);
|
||||
|
||||
if (job_count <= 0)
|
||||
return 0;
|
||||
|
||||
pthread_mutex_lock(&c->current_job_lock);
|
||||
|
||||
c->current_job = avctx->thread_count;
|
||||
c->job_count = job_count;
|
||||
c->job_size = job_size;
|
||||
c->args = arg;
|
||||
c->func = func;
|
||||
if (ret) {
|
||||
c->rets = ret;
|
||||
c->rets_count = job_count;
|
||||
} else {
|
||||
c->rets = &dummy_ret;
|
||||
c->rets_count = 1;
|
||||
}
|
||||
c->current_execute++;
|
||||
pthread_cond_broadcast(&c->current_job_cond);
|
||||
|
||||
thread_park_workers(c, avctx->thread_count);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int thread_execute2(AVCodecContext *avctx, action_func2* func2, void *arg, int *ret, int job_count)
|
||||
{
|
||||
ThreadContext *c= avctx->thread_opaque;
|
||||
c->func2 = func2;
|
||||
return thread_execute(avctx, NULL, arg, ret, job_count, 0);
|
||||
}
|
||||
|
||||
int ff_slice_thread_init(AVCodecContext *avctx)
|
||||
{
|
||||
int i;
|
||||
ThreadContext *c;
|
||||
int thread_count = avctx->thread_count;
|
||||
|
||||
#if HAVE_W32THREADS
|
||||
w32thread_init();
|
||||
#endif
|
||||
|
||||
if (!thread_count) {
|
||||
int nb_cpus = av_cpu_count();
|
||||
if (avctx->height)
|
||||
nb_cpus = FFMIN(nb_cpus, (avctx->height+15)/16);
|
||||
// use number of cores + 1 as thread count if there is more than one
|
||||
if (nb_cpus > 1)
|
||||
thread_count = avctx->thread_count = FFMIN(nb_cpus + 1, MAX_AUTO_THREADS);
|
||||
else
|
||||
thread_count = avctx->thread_count = 1;
|
||||
}
|
||||
|
||||
if (thread_count <= 1) {
|
||||
avctx->active_thread_type = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
c = av_mallocz(sizeof(ThreadContext));
|
||||
if (!c)
|
||||
return -1;
|
||||
|
||||
c->workers = av_mallocz(sizeof(pthread_t)*thread_count);
|
||||
if (!c->workers) {
|
||||
av_free(c);
|
||||
return -1;
|
||||
}
|
||||
|
||||
avctx->thread_opaque = c;
|
||||
c->current_job = 0;
|
||||
c->job_count = 0;
|
||||
c->job_size = 0;
|
||||
c->done = 0;
|
||||
pthread_cond_init(&c->current_job_cond, NULL);
|
||||
pthread_cond_init(&c->last_job_cond, NULL);
|
||||
pthread_mutex_init(&c->current_job_lock, NULL);
|
||||
pthread_mutex_lock(&c->current_job_lock);
|
||||
for (i=0; i<thread_count; i++) {
|
||||
if(pthread_create(&c->workers[i], NULL, worker, avctx)) {
|
||||
avctx->thread_count = i;
|
||||
pthread_mutex_unlock(&c->current_job_lock);
|
||||
ff_thread_free(avctx);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
thread_park_workers(c, thread_count);
|
||||
|
||||
avctx->execute = thread_execute;
|
||||
avctx->execute2 = thread_execute2;
|
||||
return 0;
|
||||
}
|
||||
|
||||
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
|
||||
{
|
||||
ThreadContext *p = avctx->thread_opaque;
|
||||
int *entries = p->entries;
|
||||
|
||||
pthread_mutex_lock(&p->progress_mutex[thread]);
|
||||
entries[field] +=n;
|
||||
pthread_cond_signal(&p->progress_cond[thread]);
|
||||
pthread_mutex_unlock(&p->progress_mutex[thread]);
|
||||
}
|
||||
|
||||
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
|
||||
{
|
||||
ThreadContext *p = avctx->thread_opaque;
|
||||
int *entries = p->entries;
|
||||
|
||||
if (!entries || !field) return;
|
||||
|
||||
thread = thread ? thread - 1 : p->thread_count - 1;
|
||||
|
||||
pthread_mutex_lock(&p->progress_mutex[thread]);
|
||||
while ((entries[field - 1] - entries[field]) < shift){
|
||||
pthread_cond_wait(&p->progress_cond[thread], &p->progress_mutex[thread]);
|
||||
}
|
||||
pthread_mutex_unlock(&p->progress_mutex[thread]);
|
||||
}
|
||||
|
||||
int ff_alloc_entries(AVCodecContext *avctx, int count)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (avctx->active_thread_type & FF_THREAD_SLICE) {
|
||||
ThreadContext *p = avctx->thread_opaque;
|
||||
p->thread_count = avctx->thread_count;
|
||||
p->entries = av_mallocz(count * sizeof(int));
|
||||
|
||||
if (!p->entries) {
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
|
||||
p->entries_count = count;
|
||||
p->progress_mutex = av_malloc(p->thread_count * sizeof(pthread_mutex_t));
|
||||
p->progress_cond = av_malloc(p->thread_count * sizeof(pthread_cond_t));
|
||||
|
||||
for (i = 0; i < p->thread_count; i++) {
|
||||
pthread_mutex_init(&p->progress_mutex[i], NULL);
|
||||
pthread_cond_init(&p->progress_cond[i], NULL);
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void ff_reset_entries(AVCodecContext *avctx)
|
||||
{
|
||||
ThreadContext *p = avctx->thread_opaque;
|
||||
memset(p->entries, 0, p->entries_count * sizeof(int));
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user